Microstructural orientation of isotactic polypropylene studied by computerized scanning eletron microscopy image analysis

We evaluate the orientation of microstructural elements of isotatic polypropylene (i-PP) before and after deformation using computerized "Quantikov" software analysis of Scanning Electron Microscopy (SEM) images. We observed that before deformation through uniaxial compression, the polymer...

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Bibliographic Details
Published inMaterials research (São Carlos, São Paulo, Brazil) Vol. 4; no. 2; pp. 103 - 106
Main Authors Machado, Giovanna, Luca, Maria Augusta de, Samios, Dimitrios
Format Journal Article
LanguageEnglish
Portuguese
Published ABM, ABC, ABPol 2001
Associação Brasileira de Metalurgia e Materiais (ABM); Associação Brasileira de Cerâmica (ABC); Associação Brasileira de Polímeros (ABPol)
Subjects
ENGINEERING, CHEMICAL
MATERIALS SCIENCE, MULTIDISCIPLINARY
METALLURGY & METALLURGICAL ENGINEERING
microscopy
orientation
polypropylene
orientation
microscopy
polypropylene
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Summary:We evaluate the orientation of microstructural elements of isotatic polypropylene (i-PP) before and after deformation using computerized "Quantikov" software analysis of Scanning Electron Microscopy (SEM) images. We observed that before deformation through uniaxial compression, the polymeric material doesn’t exhibit any significant orientation. After deformation at 1349 MPa the material clearly showed preferential orientation that was attested by the orientation axis seen between two petals of the rose of the number of intercepts. This effect was more pronounced after deformation at 2699 MPa.
ISSN:1516-1439
1980-5373
1516-1439
DOI:10.1590/S1516-14392001000200011